DENSIFLORA (Rose) Moran, 1943
Synonyms :
Stylophyllum densiflorum Rose (1903) / Cotyledon densiflora (Rose) Fedde (1904) / Echeveria densiflora (Rose) A.Berger (1930)
Cotyledon nudicaule Abrams (1903)
Echeveria nudicaulis Munz (1935) / Dudleya nudicaulis (Munz) Moran (1943) / Stylophyllum nudicaulis (Munz) Abrams (1944)
Subgenus Stylophyllum
Distribution : USA (California: Los Angeles County, San Gabriel Mts.); steep granite canyon walls, 300 - 520 m, rare.
Description (according to J. Thiede in IHSP, 2003) :
Stems < 20 x 1 - 2.5 cm, branched and cushion-forrning.
Rosettes 7 - 25 cm in diameter, with 20 - 40 leaves.
Leaves linear, ± cylindrical except the base, apically abruptly pointed, 6 - 15 cm x 6 - 12 (basally 1 – 2) mm, glaucous, farinose.
Inflorescence : Scape 10 - 30 cm, with few bracts, lower 1/2 sometimes without bracts, inflorescence 4 - 10 cm in diameter, with 3 to several 1 - 2x branched scorpioid branches, these 2 - 4 cm, with 2 - 8 flowers, pedicels 2 – 5 mm.
Flowers : Sepals triangular-ovate, 1.5 - 2.5 mm, petals narrowly ovate, divaricate from near the middle, acute, 5 - 10 x 2 - 3 mm, white or rose-coloured, tube 0.5 - 2 mm.
Flowering time : June.
Cytology : n = 17
Closely related to D. edulis and differing by the farinose more strongly flattened leaves, less numerous bracts, denser inflorescences, longer pedicels, shorter sepals and longer styles, see Moran (1943a) and Moran (1951a).